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  • Cangzhou Steel Pipe Group (CSPG) Co., Ltd.
  • ADD:No.92 Jiefang East Rd., Cangzhou City, Hebei Province, China
  • TEL:+86-31-75673271
  • MOBILE:+8615373302068
  • E-MAIL:ella@cnspipe.com
  • Hot Rolled Steel Pipe

    Hot Rolled Steel Pipe More info Typical Applications: In commercial buildings, steel pipe is used to convey heating or cooling water to heat exchangers, air handlers, variable air volume (VAV) devices, or other HVAC equipment. Hot Rolled Steel Pipe is manufactured to move volumes – such as...
    Product Details:
    ProductHot rolled A106 GrB SCH40 carbon steel seamless pipe
    ProcessHot rolled technique; cold drawn pipes, seamless pipes
    StandardASTM, BS, JIS,DIN, GB,etc.
    GradeAPI 5L, A106B, A53B, A179, A192, ST35.8,ST37, ST44,ST45, 10#,20#,etc.
    SIzeOD:1/2"~32"   WT: SCH40~XXS
    lengthRandom length or fixed length
    SurfaceBlack painting, galvanized, PE coating, etc.
    Packing

    Tiedinbundlesbysteelstripsfortheconvenienceoflongdistancetransportation, plasticcapscovrtwoends,paintingandmarkingonthepipe,orpackingas request

    CertificateISO, CE, API,etc.
    Application
    1. structral pipe
    2. oil or gas transportation
    3. fluid pipe
    4. line pipe
    5. drill pipe
    6. boiler pipe
    MarketSoutheast Asia, Middle East, South America, Africa
    MOQ20mts
    Delivery time30days after getting deposit or original LC, stock available
    Payment termTT, LC , DP, OA,etc.
    Place of originHebei in China
    keywordsMild steel pipe. API pipe, oil piperound steel pipe 2 inch steel pipe
    steel pipelarge diameter seamless steel pipe low carbon steel pipe


    Steel Grade

    C

    Si

    Mn

    P≤

    S≤

    Cu≤

    Ni≤

    Cr≤

    Mo≤

    V≤

    ASTM A106 B

    ≤0.3

    /

    ≤1.2

    0.05

    0.06

    0.4

    0.4

    0.4

    0.15

    0.08

    ST35

    ≤0.18

    0.15-0.35

    0.35-0.65

    0.035

    0.035

    0.25

    0.25

    0.25

    /

    /

    ST45

    ≤0.25

    0.15-0.35

    0.5-0.8

    0.035

    0.035

    0.25

    0.25

    0.25

    /

    /

    ST52

    ≤0.2

    ≤0.55

    ≤1.5

    0.035

    0.035

    0.25

    0.25

    0.25

    /

    /

    CK45

    0.42-0.5

    0.17-0.37

    0.5-0.8

    0.035

    0.035

    0.25

    0.25

    0.25

    /

    /


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    Hot Rolled Steel Pipe

    More info

    Typical Applications: In commercial buildings, steel pipe is used to convey heating or  cooling water to heat exchangers, air handlers, variable air volume (VAV)  devices, or other HVAC equipment.

    Hot Rolled Steel Pipe is manufactured to move volumes – such as water,  gas and oil. It is a material commonly in plumbing and construction  applications as well as the oil industry. It is measured by first taking the  inside nominal diameter, and then the thickness of the wall (also known as  Schedule).

    Contact your closest Metal Supermarkets storefor  more information about metal types, shape and grades available.

    Difference between hot rolled steel and cold rolled steel

    Category: metal man knows,steel

    Posted: september 11, 2014

    Customers  often ask us about the differences betweenhot rolled steelandcold rolled steel. There are some fundamental differences between these two types ofmetal. The differences between hot rolled steel and cold rolled steel relates to the way these metals are processed at  the mill, and not the product specification or grade. Hot rolled steel involves  rolling the steel at high temperatures, where cold rolled steel is processed  further in cold reduction mills where the material is cooled followed by  annealing and/or tempers rolling.


    Hot Rolled

    Hot rolling is a mill process which involves rolling the  steel at a high temperature (typically at a temperature over 1700° F), which is  above the steel’s recrystallization temperature. When steel is above the  recrystallization temperature, it can be shaped and formed easily, and the  steel can be made in much larger sizes. Hot rolled steel is typically cheaper  than cold rolled steel due to the fact that it is often manufactured without  any delays in the process, and therefore the reheating of the steel is not  required (as it is with cold rolled). When the steel cools off it will shrink  slightly thus giving less control on the size and shape of the finished product  when compared to cold rolled.


    Uses:

    Hot rolled  products likehot rolled steel barsare used in the  welding and construction trades to make railroad tracks and I-beams, for  example. Hot rolled steel is used in situations where precise shapes and tolerances are not required.


    Cold Rolled

    Cold rolled steel is essentially hot rolled steel that  has had further processing. The steel is processed further in cold reduction  mills, where the material is cooled (at room temperature) followed by annealing and/or tempers rolling. This process will produce steel with closer dimensional  tolerances and a wider range of surface finishes. The term Cold Rolled is  mistakenly used on all products, when actually the product name refers to the  rolling of flat rolled sheet and coil products.

    When referring tobar products, the term used is “cold  finishing”, which usually consists of cold drawing and/or turning, grinding and  polishing. This process results in higher yield points and has four main  advantages:

    *Cold drawing increases the yield and tensile strengths,often eliminating further costly thermal treatments.

    *Turning gets rid of surface imperfections.

    *Grinding narrows the original size tolerance range.

    *Polishing improves surface finish.


    All cold products provide a superior surface finish, and  are superior in tolerance, concentricity, and straightness when compared to hot  rolled.

    Cold finished bars are typically harder to work with than  hot rolled due to the increased carbon content. However, this cannot be said  about cold rolled sheet and hot rolled sheet. With these two products, the cold  rolled product has low carbon content and it is typically annealed, making it  softer than hot rolled sheet.

    Uses:

    Any project  where tolerances, surface condition, concentricity, and straightness are the  major factors.


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